Finding the Fourth Proportional to 49,978.83, 74,968.14 and 13,042.83

Step by Step Solution

1. Step 1: Write the proportion equation
   49,978.83 : 74,968.14 = 13,042.83 : x
2. Step 2: Convert to fraction form
   49,978.83/74,968.14 = 13,042.83/x
3. Step 3: Cross multiply
   49,978.83x = 74,968.14 × 13,042.83
4. Step 4: Simplify right side
   49,978.83x = 977,796,705.44
5. Step 5: Solve for x
   x = 977,796,705.44/49,978.83
6. Step 6: Final answer
   x = 19,564.22